Rekensommen met eraf tot 100

Erafsommen
1.
75
–
45
=
2.
25
–
10
=
3.
70
–
65
=
4.
100
–
5
=
5.
70
–
40
=
6.
50
–
15
=
7.
100
–
80
=
8.
50
–
20
=
9.
90
–
0
=
10.
100
–
15
=
11.
90
–
50
=
12.
95
–
40
=
13.
75
–
10
=
14.
30
–
0
=
15.
60
–
55
=
16.
85
–
55
=
17.
25
–
20
=
18.
80
–
45
=
19.
30
–
20
=
20.
30
–
5
=
21.
15
–
5
=
22.
20
–
5
=
23.
25
–
15
=
24.
15
–
10
=
25.
80
–
65
=
26.
35
–
15
=
27.
65
–
35
=
28.
5
–
0
=
29.
30
–
10
=
30.
80
–
40
=
31.
70
–
0
=
32.
65
–
45
=
33.
5
–
5
=
34.
30
–
5
=
35.
85
–
85
=
36.
85
–
30
=
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Rekensommen met eraf tot 100
| ANTWOORDEN

Erafsommen
1.
75
–
45
=
30
2.
25
–
10
=
15
3.
70
–
65
=
5
4.
100
–
5
=
95
5.
70
–
40
=
30
6.
50
–
15
=
35
7.
100
–
80
=
20
8.
50
–
20
=
30
9.
90
–
0
=
90
10.
100
–
15
=
85
11.
90
–
50
=
40
12.
95
–
40
=
55
13.
75
–
10
=
65
14.
30
–
0
=
30
15.
60
–
55
=
5
16.
85
–
55
=
30
17.
25
–
20
=
5
18.
80
–
45
=
35
19.
30
–
20
=
10
20.
30
–
5
=
25
21.
15
–
5
=
10
22.
20
–
5
=
15
23.
25
–
15
=
10
24.
15
–
10
=
5
25.
80
–
65
=
15
26.
35
–
15
=
20
27.
65
–
35
=
30
28.
5
–
0
=
5
29.
30
–
10
=
20
30.
80
–
40
=
40
31.
70
–
0
=
70
32.
65
–
45
=
20
33.
5
–
5
=
0
34.
30
–
5
=
25
35.
85
–
85
=
0
36.
85
–
30
=
55
© JuniorEinstein.nl
Online oefenen  |   Educatieve boeken  |   Werkbladen  |   Educatieve materialen